D.O. and Nam Ji-hyun, who star in "Dear Husband of 100 Days." Courtesy of tvN

By Dong Sun-hwaD.O. of K-pop boy band EXO, whose real name is Do Kyung-soo, will star in tvN's new drama "Dear Husband of 100 days," the first episode of which airs on Sept. 10. His co-star is Nam Ji-hyun. The 16-episode drama is about the romance between Lee Yool, the crown prince of "virtual Joseon," and Hong-sim, the self-sufficient spinster of the town. Lee, played by D.O., loses part of his memory after narrowly avoiding an assassin's attack and then wastes time meaninglessly. As the story unfolds, he gets a new name, Won-deuk, and ties the knot with Hong-sim, played by Nam. The couple stays together for 100 days, as the title of the series implies. "We will try our best to come up with a beautiful and enjoyable historical romantic drama that viewers have been waiting for. Please give us support and expectation until the drama's premiere," the drama's director said. D.O., who has been forging a career as a singer and an actor, has appeared in many hits including the drama "It's Okay, That's Love" in 2014, and the blockbuster "Along With the Gods: The Two Worlds" in 2017.Nam debuted in 2004 as a child actress in the MBC drama "Say You Love Me," and has starred in many works including the drama "Suspicious Partner" in 2017.